loongson/pypi: links for django-pagetree-epub

loongson/mirror django-pagetree-epub-0.3.0.tar.gz
loongson/mirror django_pagetree_epub-0.3.0-py2.py3-none-any.whl
loongson/mirror django_pagetree_epub-0.2.0-py2-none-any.whl
loongson/mirror django_pagetree_epub-0.1.0-py2-none-any.whl